"X-Rays, huh?" Noticing Shana's discomfort, Tanaka took the moment to scoot up a little before going back to his own thoughts. Well, they weren't really thoughts if he was muttering them aloud. "Yeah, I guess it would make sense to collect some samples first though. But how would we get close enough to retrieve them? How? How? How?" 

Wasn't it a simple answer?

A thought entered his mind and Tanaka grinned at Shana, the hints of creepiness present at the corners. "Isn't it a simple answer? We'll just join the. . . .join the. . .c-. . . clu. . . .large gathering of people with common interests." His eyes were bright at all the possibilities that this could unfold. "Think of it Kiotori-san! By infiltrating their gatherings, we can increase our chances of obtaining success! We could verify what makes them tick and how their internal structures help them survive social interaction It's perfect! It's genius!"

Well, it had taken some thinking, and it was by his own justifications of course. But, whether he was aware of it or not, Tanaka was basically proposing that they join Hotaru's deranged club. 

For science and the pursuit of knowledge of course.